﻿/*
 ******************************************************************
 *      
 * 域名空间　	: GreatB2C.DALSQLServer
 * 类　名　称	: Roles.cs
 * 类　功　能	: 数据操作实现层
 * 类　流　程    :                             
 * 运用算法　	:                             
 * 编　写　人	: 王超             
 * 编写日期　	: 2011/4/24
 * 最近更新日期　:
 * 版　　本　	: V1.0                           
 * 描　　述　	: Descript of Class                                                 
 *                                        
 ******************************************************************
*/

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;

using GreatB2C.Model;
using GreatB2C.DALFactory;
using GreatB2C.DALProfile;
using GreatB2C.Config;
using GreatB2C.Utility;

namespace GreatB2C.DALSQLServer
{
    /// <summary>
    /// 类描述：
    /// </summary>
    [Serializable]
    public class Roles : DbBase , IRoles
    {
        string strSql = string.Empty;

        #region implement methods

        /// <summary>
        /// 获取获取参数参数列表
        /// </summary>
        /// <param name="ac"></param>
        /// <returns></returns>
        private SqlParameter[] GetParameters( GreatB2C.Model.Roles ac )
        {
            int i = 0;
            SqlParameter[] param = new SqlParameter[ 3 ];

            param[ i ] = new SqlParameter( "@RoleID" , SqlDbType.Int , 4 );
            param[ i++ ].Value = ac.RoleID;

            param[ i ] = new SqlParameter( "@RoleName" , SqlDbType.NVarChar , 50 );
            param[ i++ ].Value = ac.RoleName;

            param[ i ] = new SqlParameter( "@Description" , SqlDbType.NVarChar , 255 );
            param[ i++ ].Value = ac.Description;


            return param;
        }

        /// <summary>
        /// 检查是否有重复记录。
        /// 注意：这里要手动修改一下，需要加入次主键做为第二条件（主要是为了修改操作）
        /// </summary>
        /// <param name="objModel">对应的数据映射类</param>
        /// <returns>操作结果：true-成功 false-失败</returns>
        public bool IsExists( GreatB2C.Model.Roles objModel )
        {
            string Sql = "SELECT Count(*) "
                            + " FROM "
                            + "[dbo].[" + Prefix + "Roles]"
                            + " WHERE "
                            + "	[RoleID] = @RoleID"
                //+" and 次主键=@次主键"
                            ;

            try
            {
                SqlParameter[] param = GetParameters( objModel );

                int count = Convert.ToInt32( DbHelper.ExecuteScalar( CommandType.Text , Sql , param ).ToString( ) );
                if ( count > 0 )
                {
                    return true;
                }

                return false;
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return false;
            }
        }

        /// <summary>
        /// 检索出表中所有记录	
        /// </summary>
        /// <param name="aryResult">返回对象数据集合</param>
        /// <returns>操作结果：true-成功 false-失败</returns>
        public DataTable ListRoles( )
        {
            DataTable dtData = new DataTable( );
            string Sql = "SELECT "
                            + "[RoleID],"
                            + "[RoleName],"
                            + "[Description]"
                            + " FROM "
                            + "[dbo].[" + Prefix + "Roles]";

            try
            {
                return DbHelper.ExecuteTable( CommandType.Text , Sql , null );
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return null;
            }
        }

        /// <summary>
        /// 根据表中主键ID查询记录信息
        /// </summary>
        /// <param name="objModel">相应的对象映射模型</param>
        /// <returns>返回对象数据映射</returns>
        public GreatB2C.Model.Roles ListByID( GreatB2C.Model.Roles objModel )
        {
            string Sql = "SELECT * "
                            + " FROM "
                            + "[dbo].[" + Prefix + "Roles]"
                            + " WHERE "
                            + "	[RoleID] = @RoleID";

            try
            {
                SqlParameter[] param = GetParameters( objModel );

                using ( DataTable dtData = DbHelper.ExecuteTable( CommandType.Text , Sql , param ) )
                {
                    if ( dtData.Rows.Count > 0 )
                    {
                        GreatB2C.Model.Roles modClass = new GreatB2C.Model.Roles( );

                        modClass.RoleID = Convert.ToInt32( dtData.Rows[ 0 ][ "RoleID" ].ToString( ) );
                        modClass.RoleName = dtData.Rows[ 0 ][ "RoleName" ].ToString( );
                        modClass.Description = dtData.Rows[ 0 ][ "Description" ].ToString( );

                        return modClass;
                    }
                }

                return null;
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return null;
            }
        }

        /// <summary>
        /// 新增一条新记录到表中
        /// </summary>
        /// <param name="objModel">相应的对象映射模型</param>
        /// <returns>操作结果：true-成功 false-失败</returns>
        public bool Insert( GreatB2C.Model.Roles objModel )
        {
            string Sql = "INSERT INTO "
                        + "[dbo].[" + Prefix + "Roles]"
                        + "("
                        + "[RoleName],"
                            + "[Description]"
                        + ") VALUES ("
                        + "@RoleName,"
                            + "@Description"
                        + ")";

            try
            {
                SqlParameter[] param = GetParameters( objModel );

                int affect = DbHelper.ExecuteNonQuery( CommandType.Text , Sql , param );

                if ( affect == 1 )
                    return true;
                else
                    return false;
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return false;
            }
        }

        /// <summary>
        /// 根据主键ID更新指定记录
        /// </summary>
        /// <param name="objModel">相应的对象映射模型</param>
        /// <returns>操作结果：true-成功 false-失败</returns>
        public bool Update( GreatB2C.Model.Roles objModel )
        {
            string Sql = "UPDATE "
                        + "[dbo].[" + Prefix + "Roles]"
                        + " SET "
                        + "[RoleName] = @RoleName,"
                            + "[Description] = @Description"
                        + " WHERE "
                        + "[RoleID] = @RoleID"
                        ;

            try
            {
                SqlParameter[] param = GetParameters( objModel );

                int affect = DbHelper.ExecuteNonQuery( CommandType.Text , Sql , param );

                if ( affect == 1 )
                    return true;
                else
                    return false;
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return false;
            }
        }

        /// <summary>
        /// 根据主键删除指定记录
        /// </summary>
        /// <param name="objModel">相应的对象映射模型</param>
        /// <returns>操作结果：true-成功 false-失败</returns>
        public bool Delete( GreatB2C.Model.Roles objModel )
        {
            string Sql = "DELETE FROM "
                            + "[dbo].[" + Prefix + "Roles]"
                            + " WHERE "
                            + "[RoleID] = @RoleID"
                            ;

            try
            {
                SqlParameter[] param = GetParameters( objModel );

                int affect = DbHelper.ExecuteNonQuery( CommandType.Text , Sql , param );

                if ( affect == 1 )
                    return true;
                else
                    return false;
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return false;
            }
        }

        /// <summary>
        /// 根据ID列表批量删除记录
        /// 数据格式：1,2,3,4,5
        /// </summary>
        /// <param name="strList">ID列表</param>
        /// <returns>操作结果：true-成功 false-失败</returns>
        public bool DeleteList( string strList )
        {
            string Sql = "DELETE FROM "
                            + "[dbo].[" + Prefix + "Roles]"
                            + " WHERE "
                            + "[RoleID] in ('" + strList + "')"
                            ;

            try
            {
                int affect = DbHelper.ExecuteNonQuery( CommandType.Text , Sql , null );

                if ( affect == 1 )
                    return true;
                else
                    return false;
            }
            catch ( Exception ex )
            {
                Console.Write( ex.Message );
                return false;
            }
        }

        #endregion
    }
}
